Patents by Inventor Zhichong Wang

Zhichong Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10811114
    Abstract: Embodiments of the present application provide a shift register unit, a method for driving the same, a gate driving circuit, and a display apparatus. The shift register unit comprises at least two sub-circuits of a first output sub-circuit, a second output sub-circuit, and a third output sub-circuit. The first output sub-circuit is configured to output a voltage at a signal output terminal to a reset signal output terminal; the second output sub-circuit is configured to output the voltage at the signal output terminal to a gating signal output terminal; and the third output sub-circuit is configured to output a voltage at a second voltage terminal to a light-emitting control signal output terminal or is configured to output a voltage at a first voltage terminal to the light-emitting control signal output terminal.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: October 20, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lijun Yuan, Mingfu Han, Seung Woo Han, Xing Yao, Zhichong Wang, Guangliang Shang, Haoliang Zheng
  • Patent number: 10770163
    Abstract: A shift register unit, a method of driving a shift register unit, a gate driving circuit and a display device are provided. The shift register unit includes an input circuit, a first pull-up node reset circuit and an output circuit. The input circuit is configured to control an level of a pull-up node to a first level in response to an input signal of an input terminal, and thereafter control a level of a first node to a second level under control of a level of a pull-down node. The first node is in a current path for controlling the level of the pull-up node. The first pull-up node reset circuit is configured to reset the pull-up node in response to a first reset signal. The output circuit is configured to output a clock signal to an output terminal under control of the level of the pull-up node.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: September 8, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventor: Zhichong Wang
  • Publication number: 20200273419
    Abstract: A shift register unit and a driving method, a grid driving circuit and a display device are disclosed. A shift register unit includes an input circuit, a first reset circuit, and an output circuit. The input circuit includes an input terminal configured to perform a first control on the first control node and the first node in response to an input signal of the input terminal, and then perform a second control on the first node under the control of the level of the first node, the first node is located in a path where the input signal incurs the first control; the first reset circuit is configured to reset the first control node in response to the first reset signal; the output circuit is configured to output an output signal to an output terminal under the control of the level of the first control node.
    Type: Application
    Filed: November 5, 2018
    Publication date: August 27, 2020
    Inventors: Zhichong WANG, Haoliang ZHENG, Guangliang SHANG, Seung Woo HAN, Yinglong HUANG
  • Publication number: 20200273503
    Abstract: A shift register unit, a gate driving circuit, a display device and a driving method are disclosed. The shift register unit includes an input circuit, a first reset circuit, an output circuit, and a node control circuit. The input circuit is configured to control a level of a first node in response to an input signal; the first reset circuit is configured to reset the first node in response to the first reset signal; the output circuit is configured to output a driving signal to an output terminal under control of the level of the first node; and the node control circuit is configured to control a level of a second node in response to the driving signal.
    Type: Application
    Filed: October 31, 2018
    Publication date: August 27, 2020
    Inventor: Zhichong WANG
  • Publication number: 20200258463
    Abstract: A shift register unit cascaded in a gate drive circuit, wherein the shift register unit comprises: a control circuit configured to output a control signal, at least two buffer circuits coupled to the control circuit, each of the at least two buffer circuits configured to output scan signal to a gate line. As such, the scan signals output from the at least two buffer circuits would be synchronized so that the gate lines respectively coupled to the two buffer circuits can be scanned simultaneously.
    Type: Application
    Filed: October 31, 2017
    Publication date: August 13, 2020
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiha Kim, Seungwoo Han, Guangliang Shang, Haoliang Zheng, Xing Yao, Zhichong Wang, Mingfu Han, Lijun Yuan, Yunsik IM, Jing Lv, Xue Dong
  • Publication number: 20200243013
    Abstract: Disclosed are a pixel circuitry, a method for driving the same and a display device. The pixel circuitry includes a light-emitting element, a driving circuit, a compensation control circuit, an initialization circuit, an energy storage circuit, a writing control circuit and a light-emitting control circuit. The driving circuit is configured to drive the light-emitting element to emit light. The initialization circuit is configured to write an initialization voltage to a control end of the driving circuit to control the driving circuit to be turned on or off. The compensation control circuit is configured to turn on the driving circuit and perform threshold voltage compensation on the driving circuit. The writing control circuit is configured to write a data voltage inputted by a data line to a second end of the energy storage circuit and write a reference voltage to the second end of the energy storage circuit.
    Type: Application
    Filed: October 14, 2019
    Publication date: July 30, 2020
    Applicants: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhichong WANG, Fuqiang LI, Jing FENG, Peng LIU, Xinglong LUAN
  • Patent number: 10679565
    Abstract: An array substrate, a display panel, a display device and a driving method. The array substrate includes: a plurality of first pixel units arranged in an array in a first region; a first gate driving circuit a second gate driving circuit; a plurality of first gate lines connected with the first gate driving circuit; and a plurality of second gate lines connected with the second gate driving circuit. A first portion of the plurality of first pixel units is connected with the plurality of first gate lines, and each first pixel unit in the first portion is connected with one of the plurality of first gate lines; and a second portion of the plurality of first pixel units is connected with the plurality of second gate lines, and each first pixel unit in the second portion is connected with one of the plurality of second gate lines.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: June 9, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiha Kim, Seung Woo Han, Guangliang Shang, Haoliang Zheng, Xing Yao, Mingfu Han, Zhichong Wang, Lijun Yuan, Yun Sik Im, Yinglong Huang, Xue Dong
  • Patent number: 10629151
    Abstract: There is provided in the present disclosure a shift register unit, comprising: an input circuit, whose first terminal is connected to a power supply terminal, second terminal is connected to an input terminal, and third terminal is connected to a pull-up node, the input circuit being configured to input a power supply signal input by the power supply terminal to the pull-up node under the control of an input signal; a pull-up control circuit, whose first terminal is connected to a first clock signal terminal, and second terminal is connected to the pull-up node, the pull-up control circuit being configured to control a potential of the pull-up node according to a first clock signal input by the first clock signal terminal; a pull-up circuit, whose first terminal is connected to a first signal terminal, second terminal is connected to an output terminal, third terminal is connected to the pull-up node.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: April 21, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiha Kim, Lijun Yuan, Zhichong Wang, Mingfu Han, Xing Yao, Guangliang Shang, Seung Woo Han, Yun Sik Im, Jing Lv, Yinglong Huang, Jung Mok Jun, Haoliang Zheng
  • Publication number: 20200090611
    Abstract: The present disclosure relates to an array substrate gate driving unit and an apparatus thereof, a driving method and a display apparatus. The array substrate gate driving unit includes: an input circuit, connected with an input signal terminal and a pull-up node PU; a pull-down circuit, connected with a first voltage signal terminal and the pull-up node PU; a pull-down control circuit, connected with the pull-down circuit via a pull-down node PD; an output circuit, connected with a clock signal terminal CLK, a second voltage signal terminal and a control circuit; a reset circuit, connected with a reset signal terminal Reset, the first voltage signal terminal and the pull-up node PU; and the control circuit, connected with the pull-up node PU and the output circuit.
    Type: Application
    Filed: July 28, 2017
    Publication date: March 19, 2020
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Mingfu Han, Guangliang Shang, Xing Yao, Seung Woo Han, Jiha Kim, Haoliang Zheng, Lijun Yuan, Zhichong Wang
  • Patent number: 10540938
    Abstract: A shift-buffer circuit, a gate driving circuit, a display panel, a display device, and a driving method. The shift-buffer circuit includes: a shift register and a plurality of buffers connected with the shift register. The shift register includes a shift output terminal; the shift register is configured to output a shift output signal from the shift output terminal, in response to a shift clock signal; each of the buffers includes a buffer input terminal and a buffer output terminal, the buffer input terminal being connected with the shift output terminal; each of the buffers is configured to output a buffer output signal from the buffer output terminal, in response to a buffer clock signal.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: January 21, 2020
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Jiha Kim, Seung Woo Han, Guangliang Shang, Xing Yao, Haoliang Zheng, Mingfu Han, Zhichong Wang, Lijun Yuan, Yun Sik Im, Jing Lv, Yinglong Huang, Xue Dong
  • Patent number: 10504469
    Abstract: A shift-buffer circuit, a gate driving circuit, a display panel, a display device, and a driving method. The shift-buffer circuit includes: a shift register and a plurality of buffers connected with the shift register. The shift register includes a shift output terminal; the shift register is configured to output a shift output signal from the shift output terminal, in response to a shift clock signal; each of the buffers includes a buffer input terminal and a buffer output terminal, the buffer input terminal being connected with the shift output terminal; each of the buffers is configured to output a buffer output signal from the buffer output terminal, in response to a buffer clock signal.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: December 10, 2019
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Jiha Kim, Seung Woo Han, Guangliang Shang, Xing Yao, Haoliang Zheng, Mingfu Han, Zhichong Wang, Lijun Yuan, Yun Sik Im, Jing Lv, Yinglong Huang, Xue Dong
  • Patent number: 10504408
    Abstract: The embodiments of the present disclosure provide a partition-based gate driving method and apparatus and a gate driving unit, and relates to the field of display technology. In the embodiments of the present disclosure, the partition-based gate driving method comprises: generating a control signal according to an acquired human eye observation partition; generating a second clock signal or a third clock signal according to the control signal; and controlling a second output signal according to the second clock signal or controlling a third output signal according to the third clock signal, thereby controlling the display area to be displayed by partitions.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: December 10, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Mingfu Han, Guangliang Shang, Han-Seung- Woo, Xing Yao, Zhihe Jin, Haoliang Zheng, Lijun Yuan, Zhichong Wang
  • Patent number: 10475409
    Abstract: The present disclosure discloses a gate drive circuit, a display panel and a driving method for the gate drive circuit. The gate drive circuit includes a plurality of shift register units connected in cascade; and further includes: buffer units which are in a one-to-one correspondence with shift register units at all levels, and touch control switch units which are in a one-to-one correspondence with shift register units at even levels. Each buffer unit in the gate drive circuit can increase the holding time of the effective pulse signal output by the shift register unit at a corresponding level by one line before resetting, and the effective pulse signal output by a buffer unit at an even level under the control of a touch control unit and the effective pulse signal output by a buffer unit at an adjacent previous odd level are reset at the same time.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: November 12, 2019
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Mingfu Han, Xing Yao, Guangliang Shang, Haoliang Zheng, Seung-Woo Han, Jiha Kim, Lijun Yuan, Zhichong Wang
  • Publication number: 20190304559
    Abstract: A shift register unit, a method of driving a shift register unit, a gate driving circuit and a display device are provided. The shift register unit includes an input circuit, a first pull-up node reset circuit and an output circuit. The input circuit is configured to control an level of a pull-up node to a first level in response to an input signal of an input terminal, and thereafter control a level of a first node to a second level under control of a level of a pull-down node. The first node is in a current path for controlling the level of the pull-up node. The first pull-up node reset circuit is configured to reset the pull-up node in response to a first reset signal. The output circuit is configured to output a clock signal to an output terminal under control of the level of the pull-up node.
    Type: Application
    Filed: October 12, 2018
    Publication date: October 3, 2019
    Inventor: Zhichong WANG
  • Publication number: 20190279574
    Abstract: An array substrate, a display panel, a display device and a driving method. The array substrate includes: a plurality of first pixel units arranged in an array in a first region; a first gate driving circuit a second gate driving circuit; a plurality of first gate lines connected with the first gate driving circuit; and a plurality of second gate lines connected with the second gate driving circuit. A first portion of the plurality of first pixel units is connected with the plurality of first gate lines, and each first pixel unit in the first portion is connected with one of the plurality of first gate lines; and a second portion of the plurality of first pixel units is connected with the plurality of second gate lines, and each first pixel unit in the second portion is connected with one of the plurality of second gate lines.
    Type: Application
    Filed: November 7, 2017
    Publication date: September 12, 2019
    Applicant: BOB TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiha KIM, Seung Woo HAN, Guangliang SHANG, Haoliang ZHENG, Xing YAO, Mingfu HAN, Zhichong WANG, Lijun YUAN, Yun Sik IM, Yinglong HUANG, Xue DONG
  • Publication number: 20190279588
    Abstract: There is provided in the present disclosure a shift register unit, comprising: an input circuit, whose first terminal is connected to a power supply terminal, second terminal is connected to an input terminal, and third terminal is connected to a pull-up node, the input circuit being configured to input a power supply signal input by the power supply terminal to the pull-up node under the control of an input signal; a pull-up control circuit, whose first terminal is connected to a first clock signal terminal, and second terminal is connected to the pull-up node, the pull-up control circuit being configured to control a potential of the pull-up node according to a first clock signal input by the first clock signal terminal; a pull-up circuit, whose first terminal is connected to a first signal terminal, second terminal is connected to an output terminal, third terminal is connected to the pull-up node.
    Type: Application
    Filed: December 14, 2017
    Publication date: September 12, 2019
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiha KIM, Lijun YUAN, Zhichong WANG, Mingfu HAN, Xing YAO, Guangliang SHANG, Seung Woo HAN, Yun Sik IM, Jing LV, Yinglong HUANG, Jung Mok JUN, Haoliang ZHENG
  • Patent number: 10330975
    Abstract: The present application discloses a reflective display panel, a driving method thereof, a control method of a pixel unit and a reflective display device. The reflective display panel comprises: a base substrate, a reflective layer, first and second electrode layers, wherein the first electrode layer is on a side of the reflective layer distal to the base substrate, the second electrode layer is on a side of the first electrode layer distal to the base substrate and insulated from the first electrode layer, materials of the first and second electrode layers are each an electro-optic material, and orthogonal projections of the second and first electrode layers on the base substrate have overlapping areas corresponding to the pixel units.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: June 25, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhihe Jin, Seungwoo Han, Mingfu Han, Xing Yao, Guangliang Shang, Zhichong Wang, Lijun Yuan, Haoliang Zheng, Yunsik Im
  • Publication number: 20190180834
    Abstract: Embodiments of the present application provide a shift register unit, a method for driving the same, a gate driving circuit, and a display apparatus. The shift register unit comprises at least two sub-circuits of a first output sub-circuit, a second output sub-circuit, and a third output sub-circuit. The first output sub-circuit is configured to output a voltage at a signal output terminal to a reset signal output terminal; the second output sub-circuit is configured to output the voltage at the signal output terminal to a gating signal output terminal; and the third output sub-circuit is configured to output a voltage at a second voltage terminal to a light-emitting control signal output terminal or is configured to output a voltage at a first voltage terminal to the light-emitting control signal output terminal.
    Type: Application
    Filed: September 21, 2018
    Publication date: June 13, 2019
    Inventors: Lijun YUAN, Mingfu HAN, Seung Woo HAN, Xing YAO, Zhichong WANG, Guangliang SHANG, Haoliang ZHENG
  • Publication number: 20190139475
    Abstract: A shift register circuit, a driving method thereof, a gate drive circuit and a display device are provided. The shift register circuit includes an input sub-circuit, an output sub-circuit, a discharge sub-circuit and a noise reduction sub-circuit. The input sub-circuit is connected to an input signal terminal, a first power source terminal and a pull-down node, and configured to, under the control of an input signal, output a first power source terminal signal to the pull-down node. In the shift register circuit, the discharge sub-circuit may control the potential of the pull-down node to be an ineffective potential at the input stage, thereby preventing the noise reduction sub-circuit from affecting the potentials of the pull-up node and the output terminal under the control of the pull-down node, and ensuring normal output of the shift register circuit.
    Type: Application
    Filed: September 10, 2018
    Publication date: May 9, 2019
    Inventors: Zhichong Wang, Haoliang Zheng, Seungwoo Han, Guangliang Shang, Mingfu Han, Lijun Yuan, Xing Yao
  • Patent number: 10269290
    Abstract: Embodiments of the present disclosure provide a shift register unit, a driving method thereof, a gate driving circuit, and a display device. The shift register unit comprises an input circuit, a reset circuit, a plurality of output circuits, a plurality of pull-down circuits and a plurality of pull-down control circuits. During a first time period, all of signals output by the plurality of output circuits are valid. During a second time period, at least one of the signals output by the plurality of output circuits is invalid, wherein the second time period comprises a first sub-period and a second sub-period, and the state of at least one of the signals output by the plurality of output circuits during the first sub-period is opposite to the state thereof during the second sub-period. The shift register unit may enable transistors in a pixel circuit to switch between ON and OFF states, so as to extend lifetime of the transistors.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: April 23, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Guangliang Shang, Mingfu Han, Haoliang Zheng, Han-Seung- Woo, Im-Yun- Sik, Jing Lv, Yinglong Huang, Jun-Jung- Mok, Xue Dong, Zhichong Wang, Xing Yao, Lijun Yuan, Zhihe Jin